and fans flooding twitter overnight. >>> mitt romney, heading to another must-win state today. facing tough questions from our david muir about that video and disappointing, new numbers. >>> air scare. hundreds of passengers bracing for a crash. a critical problem with the plane's landing gear. but then, a miracle. >>> and is one of the 20th century's enduring mysteries about to be solved? police planning to dig up a suburban driveway in the search for jimmy hoffa. >>> good thursday morning, everybody. we begin with the big, breaking news. the nfl and its referees have struck a deal, ending that lockout that put substitute refs in the game. >> now, the two sides finally settled after a controversial play turned the labor dispute into a national punch line. we begin with abc's tahman bradley. >> a deal is done. >> reporter: regular nfl officials return to work tonight, after their union and the league reached a tentative agreement to end the lockout that began in june. >> the replacement officials will be replaced. >> reporter: the officials union still needs to approve the eight-year deal.